Need some help here.I am stuck 
I have a XML file test.xml :
My problem with this xml is that usernames are in alphabetical order and i want to sort them by,age for example.I use this code:
The output:
As you can see the elements are now sorted,but how do i save it to a new xml file,test-sorted.xml?I 've tried so many times with so many possible codes and i can't figure it out.I am lost...
I have a XML file test.xml :
Code:
<?xml version="1.0" encoding="UTF-8"?> <root> <element> <username>A</username> <about> <description>random description</description> <from>A place on earth</from> <since>1999</since> </about> <person> <gender>female</gender> <age>29</age> <status>single</status> </person> <profileImage>url to jpg</profileImage> </element> <element> <username>B</username> <about> <description>random description</description> <from>A place on earth</from> <since>1999</since> </about> <person> <gender>female</gender> <age>35</age> <status>single</status> </person> <profileImage>url to jpg</profileImage> </element> <element> <username>C</username> <about> <description>random description</description> <from>A place on earth</from> <since>1999</since> </about> <person> <gender>female</gender> <age>18</age> <status>single</status> </person> <profileImage>url to jpg</profileImage> </element> <element> <username>D</username> <about> <description>random description</description> <from>A place on earth</from> <since>1999</since> </about> <person> <gender>female</gender> <age>22</age> <status>single</status> </person> <profileImage>url to jpg</profileImage> </element> <element> <username>E</username> <about> <description>random description</description> <from>A place on earth</from> <since>1999</since> </about> <person> <gender>female</gender> <age>31</age> <status>single</status> </person> <profileImage>url to jpg</profileImage> </element> </root>
Code:
<?php
/////////////////////////////sort xml////////////////////////////////////////////////////
$url = 'test.xml';
$xml = simplexml_load_file($url);
$items = array();
foreach($xml->element as $item) {
$items[] = $item;
};
// Custom sort on the names of the items:
usort ($items, function($a, $b ) {
return strcmp($a->person->age[0] , $b->person->age[0]);
});
foreach ($items as $item) {
echo $item->username . "<br/>" . $item->person->age . "<br/><br/>";
}
?>
C
18
D
22
A
29
E
31
B
35
18
D
22
A
29
E
31
B
35

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